دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. in improved recovery, oil remaining in a reservoir after an improved recovery method has been applied and displacement has occurred. 2. in petroleum refining, the combustible, viscous, or semiliquid bottoms product from crude oil distillation, used as adhesives, roofing compounds, asphalt, low-grade fuels, and sealants.

n: provision in many casinghead gas purchase contracts that provides that all of the sellers properties covered by the contract will be treated as a single property in determining whether the producer has taken more residue gas for use in operations than the quantity to which he or she is entitled.

n: (RCRA) a federal regulatory program designed to ensure responsible man- agement of hazardous waste at all levels of contact. i.e., generation, transportation, treatment, storage, and disposal;regulates the management of onland disposal of all solid wastes. This comprehensive program is designed to protect human health and the envirorunent from the unintentional exposure to solid waste that is identified as hazardous waste." Also institutes a "cradle-to-grave" monitoring program that closely tracks and regulates the handling of hazardous waste from the time the waste is first generated until it is disposed.

n pi: concentrations of naturally occurring liquid or gaseous hydrocarbons in the earths crust. some part of which are currently or potentially economically extractable. Some categories of resources are (1) from the economic standpoint. economic (recoverable, commercial),marginally economic, and subeconomic;and (2) from the geological standpoint, identified (subdi- vided into measured, indicated, and inferred),and undiscovered.

n: a reservoir in which the pressure is high and the hydrocarbon content is completely in a gaseous or supercritical phase at initial conditions. As the pressure drops because of production, the heavier hydrocarbon components condense, forming liquids within the reservoir. Such action is the retrograde phenomenon. If the reservoir pressure is completely depleted, only a small portion of these liquids will revaporize and be recovered.

n: the course of drilling fluid downward through the annulus and upward dlrough the drill stem, in contrast to normal circulation in which the course is downward through the drill stem and upward through the annulus. Seldom used in open hole, but frequently used in workover operations. Also refers to as circulating the short way," since returns from bottom can be obtained more quickly than in normal circulation. Compare normal circulation.

n: A kind of well control ways, which blowing out the overflow from the inner of drill pipe through pressed in drilling fluid from the annular space.

n: a device that increases an engines speed by decreasing the positive voltage going to the electric actuator and governor. As the engine needs more fuel to go faster, the reverse-acting actuator decreases the positive voltage to make the governor increase the fuel. Compare direct-acting electric actuator. See governor.

v: to restore production from an existing formation when it has fallen off substantially or ceased altogether. See work over.

recovery factor.